FPCN39 CWLW 131400 SMOKE CONTROL FORECAST FOR COASTAL BC AND THE INTERIOR INCLUDING THE NORTHEAST ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT WEDNESDAY 13 OCTOBER 1999 FOR TODAY. VENTILATION INDICES AND MIXING HEIGHTS. MIXING HEIGHTS IN METRES ABOVE SEA LEVEL. AVERAGE WINDS IN KM/HR. SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. SOUTHERN INTERIOR *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) FRSR CANYON 100/GOOD 1138 28 100/GOOD 1335 20 100/GOOD 1614 9 KAMLOOPS 39/FAIR 532 28 100/GOOD 1656 24 100/GOOD 1775 18 OKANAGAN 24/POOR 539 26 100/GOOD 989 21 100/GOOD 1744 15 CASTLEGAR 36/FAIR 736 19 36/FAIR 772 17 100/GOOD 2001 16 CRANBROOK 22/POOR 1048 27 52/FAIR 1220 22 100/GOOD 2347 22 REVELSTOKE 35/FAIR 666 20 44/FAIR 748 16 52/FAIR 796 17 FORCAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PENTICTON 0 0 SW 24 SW 57 CRANBROOK W 13 W 37 CENTRAL INTERIOR *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) QUESNEL 24/POOR 648 27 100/GOOD 2112 26 100/GOOD 1760 23 100 MILE 17/POOR 1004 27 100/GOOD 2566 23 100/GOOD 2304 24 WILLIAMS LK 16/POOR 988 24 100/GOOD 2551 25 100/GOOD 2358 23 PUNTZI MNT 27/POOR 1017 35 100/GOOD 2410 31 100/GOOD 2346 25 PR. GEORGE 39/FAIR 862 33 100/GOOD 2018 30 100/GOOD 1889 27 BURNS LAKE 31/POOR 835 37 100/GOOD 1656 32 100/GOOD 1879 23 SMITHERS 22/POOR 621 30 100/GOOD 1224 30 100/GOOD 1543 22 FORCAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m PR. GEORGE S 44 SW 50 SMITHERS S 59 SW 91 NORTHERN BC/YUKON *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) FT NLSN 23/POOR 487 23 100/GOOD 1086 27 100/GOOD 1230 32 FT STJOHN 87/GOOD 982 46 100/GOOD 2192 43 100/GOOD 2493 36 WHITEHORSE 30/POOR 1023 8 83/GOOD 1212 20 100/GOOD 1809 27 DAWSON 17/POOR 459 22 16/POOR 587 3 29/POOR 584 18 WATSON LAKE 23/POOR 909 8 53/FAIR 896 23 100/GOOD 2149 28 FORCAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m DEASE LAKE S 33 SW 74 WATSON LAKE S 33 S 35 WHITEHORSE SE 26 S 35 MAYO SE 30 S 43 COAST *** TODAY *** *** TOMORROW *** ****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM ***** VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd (m) (km/h) (m) (km/h) (m) (km/h) VANCOUVER 25/POOR 123 33 75/GOOD 610 18 99/GOOD 615 30 FRASER VLY 39/FAIR 332 32 70/GOOD 550 17 100/GOOD 1187 18 SRN VRISL 34/FAIR 185 25 70/GOOD 550 22 100/GOOD 866 16 CNTRL VRISL 13/POOR 58 15 78/GOOD 618 18 100/GOOD 1171 18 NRN VRISL 20/POOR 93 21 77/GOOD 610 21 100/GOOD 699 20 TERRACE 32/POOR 400 23 80/GOOD 750 21 32/POOR 524 9 STEWART 23/POOR 138 24 75/GOOD 600 22 64/GOOD 400 16 FORCAST UPPER WINDS FOR WEDNESDAY AFTERNOON (WINDS IN KM/H) : 900m 1800m 2700m VANCOUVER S 25 SW 43 W 63 SANDSPIT SW 64 SW 74 SW 78 PORT HARDY S 66 SW 80 SW 89 VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET END/ $$$$^^